The Safe Streets Report provides an overview of the City of Boulder's efforts to continuously improve transportation safety.

2022 Safe Streets Report

View the 2022 Vision Zero Boulder: Safe Streets Report

Key Findings

  • Total crashes per year in Boulder have been trending down since 2016.

  • However, severe crashes per year have remained steady, ranging between 55 to 60 per year except for 2020, which was impacted by the COVID-19 pandemic and had 38 severe crashes.

  • 67% of crashes resulting in serious injury or fatality occurred on arterial streets.

  • Between 2018 and 2020, there were an average of 1,914 crashes per year, 50 (approximately 3%) of which were severe.

COVID-19 Impacts

  • Starting in March 2020, COVID-19 restrictions, remote working, and virtual school significantly impacted travel.

  • The number of vehicle miles traveled (VMT), total crashes, and severe crashes all decreased compared to previous years.

  • VMT decreased by 29%, total crashes by 47%, and severe crashes by 33% in 2020 as compared to the 2017-2019 average.

Crash Categories of Concern

  • Areas of concern remain similar to those identified in previous reports—pedestrians, bicycles, left turns, and speeding—with a noted increase in crashes involving people age 65+.

  • Trends for pedestrians, bikes, and left turns have generally held steady.

  • Severe speeding crashes increased from 1 in 4 to 1 in 3 crashes.

  • Since 2010, crashes involving an older adult have increased by 89% while the older adult population has increased by 35% between 2010 and 2019.

The forthcoming Vision Zero Action Plan will detail strategies for reducing these types of crashes.

2022 Safe Streets Report Cover Thumbnail

About the Report

The Safe Streets Boulder Report measures traffic crash data in Boulder. It identifies trends in crashes and evaluates past safety improvement efforts.

A companion to the report is the Vision Zero Action Plan, which identifies additional strategies the city can take to reduce fatal and severe crashes. Subsequent to the finalization of the 2022 Safe Streets Report, the 2022 Vision Zero Action Plan will be updated and released later this year.

20 Is Plenty Evaluation

The city has also completed an evaluation of the 20 Is Plenty program. The program was started in summer 2020 and lowered the default speed limit in the city and on local, residential streets to 20 mph.

The evaluation found that enacting 20 Is Plenty did not reduce vehicle speeds in a statistically significant way. This is line with the findings of peer cities that implemented similar programs. However, it did demonstrate that street design has a larger impact on speeds and supports the city's approach to focusing crash mitigation efforts on arterial streets, where our most severe crashes are happening.

View the report PDF.